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something about Resonators

 
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Old 01-16-2013, 08:08 PM
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something about Resonators

okay. i know resonators are only there to lower the noise, But would a 18'' long and 4'' in/outlet diameter be better as of more quiet?
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Old 01-16-2013, 08:38 PM
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Re: something about Resonators

Huh?? You talkin straight pipe?
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Old 01-17-2013, 03:09 AM
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Re: something about Resonators

bigger resonator is always more quiet
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Old 01-17-2013, 07:58 PM
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Re: something about Resonators

4" is turbodiesel exhaust. You want an suv resonator, 3" and occupy the length of straight pipe you have. Also SUV cat will do the trick. Avoid ebay pipes and test pipes.
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Old 01-17-2013, 08:59 PM
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Re: something about Resonators

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Originally Posted by dslim View Post
okay. i know resonators are only there to lower the noise, But would a 18'' long and 4'' in/outlet diameter be better as of more quiet?


18" long is the typical length for an aftermarket resonator - and I believe the factory resonator is somewhere around 2' but don't know exactly.


Inlet/outlet should ALWAYS match your pipe size. So if you have a 2.5" exhaust, get a 2.5" inlet/outlet resonator.


The extra measurement you will have while searching for a resonator is the overall diameter of the center - so for your typical aftermarket exhaust with a 2.5" pipe, you will have a 3.5" or larger center diameter (where the resonator enlarges)



The larger the resonator - the deeper the tone of the exhaust. So if you have a high pitch or a lot of rasp, a resonator can "typically" fix this issue. However, if you have a bottle type muffler- it may take more than one resonator OR an "ultra quite" type which is basically like adding a second muffler within the exhaust system.




Example:

My exhaust is 3" piping

My resonator is a 3" inlet/outlet and 18" long

The outer diameter of the center portion is 4"



Here is a photo from my exhaust adventures. From right to left:

3" exhaust - Greddy evo2 - stock

both aftermarket resonators are 18" long




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Old 01-17-2013, 10:31 PM
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Re: something about Resonators

Yes, the fare left would be the the balance between silence and throaty. you still need a Cat Prof OAK. In an unrelated matter... Do I spy the project prelude ???
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SURGEON GENERAL WARNING:
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Old 01-18-2013, 02:11 AM
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Re: something about Resonators

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Originally Posted by Sideswipe SI View Post
Yes, the fare left would be the the balance between silence and throaty. you still need a Cat Prof OAK. In an unrelated matter... Do I spy the project prelude ???


See that little sucker on the far left exhaust... towards the bottom of the 2nd pic?


Custom SMSP Catalytic converter.


And that's my 5th gen. Can't miss me at the Tri-State meet with a rear end like that ;)
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Old 01-18-2013, 12:00 PM
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Re: something about Resonators

Bonkers.
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SURGEON GENERAL WARNING:
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Old 01-20-2013, 05:29 PM
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Re: something about Resonators

looks cool, thanks.
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